Troubleshooting - Pfannenberg PWI 6302C/ 115 V Betriebsanleitung

GB
6

Troubleshooting

Fault
Unit does not cool,
Fan is running
Unit does not cool
sufficiently
Condensate
accumulates in the
switch cabinet
Condensate does not
drain
Operating manual PWS and PWI 6302 C 086100048 © Pfannenberg GmbH
Possible causes
• Temperature setting too high.
• Operating limits exceeded.
• Heat exchanger dirty.
•
Fan defective.
• Disturbance in the air circulation
inside the cabinet.
• Exhaust temperature is too high.
• Switch cabinet is not sufficiently
sealed.
• Condensate drain is plugged up.
• Switch cabinet is not sufficiently
sealed.
Corrective measures
 Check the temperature setting.
 Check the ambient temperature and internal
load.
 Call in authorized, qualified personnel to
check the unit for leakage.
 Clean the heat exchanger.
 Call in authorized, qualified personnel;
replace fan.
 Check the installation and the path of air
circulating in the switchgear cabinet.
 Check the supply and outlet flow of air from
the air/ water heat exchanger into the inlet
and outlet openings of the switch cabinet.
 Close the cabinet door.
 Correct leaky points or seals on the switch
cabinet.
 Check the temperature setting.
 Clean the condensate drain.
 Check whether the condensate drain hose
is free from kinks and is installed with a
downward slope.
 Correct leaky points or seals on the switch
cabinet.
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